Carry-over effects and fitness trade-offs in marine life histories: The costs of complexity for adaptation.

ABSTRACT: Most marine organisms have complex life histories, where the individual stages of a life cycle are often morphologically and ecologically distinct. Nevertheless, life-history stages share a single genome and are linked phenotypically (by "carry-over effects"). These commonalities across the life history couple the evolutionary dynamics of different stages and provide an arena for evolutionary constraints. The degree to which genetic and phenotypic links among stages hamper adaptation in any one stage remains unclear and yet adaptation is essential if marine organisms will adapt to future climates. Here, we use an extension of Fisher's geometric model to explore how both carry-over effects and genetic links among life-history stages affect the emergence of pleiotropic trade-offs between fit

SUBMITTER: Marshall DJ 

PROVIDER: S-EPMC9923492 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature